Pulley.



UNiTEn STATES PATENT OEEICE.

PATRICK J. CREEDEN, OF COLUMBUS, OHIO.

PULLEY.

SPECIFICATION forming part of Letters Patent No. 684,603, dated October 15, 1901.. Application tiled October 29, 1900. Serial No. 34,779. (No model.)

T0 all whom, it may concern:

Be it known that I, PATRICK J. CREEDEN, a citizen of the United States, residing at Oolumbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Pulleys; and I do hereby declare the following to be a full, clear, and exact description of the invention, suoli as will enable others skilled in the art to which it appertains to make and use the same.

The object of this invention is an improved construction of pulley and means for fastening the same to a shaft. Heretofore wooden pulleys in practice have been fastened to shafts by screws engaging the wood of the pulley.

The present invention contemplates the provision of metallic devices in such or similar pulleys to be engaged bythe fastening screws or bolts.

In the accompanying drawings, showing one embodiment of the invention, Figure lis a sectional View taken on a plane at right angles to the aXis of the pulley, said plane being indicated by the line fn oc on Fig. 2. Fig. 2 is a View of the rim 'of the pulley. Fig. 3 is a sectional View taken on a plane indicated by the line y y, Fig. 1, looking down.

Like characters of reference in the several views designate corresponding parts.

The body proper of the pulley is indicated to be composed of two sections or semicylinders of wood 1 l, cored to receive bushingpieces 2 2, as usual, to frictionally embrace the shaft to which the pulleyis to be attached.

The rim of the pulley is made with a rabbet or groove to receive the halves 3 3 of a metallic band. The parts of the metallic band are furnished on their inner sides with bosses 4t, one side of which is perforated, as indicated at 4.a, and the other side tapped with a threaded hole, as indicated at 4J.

The body of the pulley is appropriately recessed, as indicated at 3, to receive the bosses 4, and perforated, as indicated at 3b, between the opposite bosses to permit the insertion of screw-bolts 5.

By the provision of the taps and holes in the bosses of the halves composing the band the adjacent bolts have their heads on opposite sides of the pulley, thus insuring a more equal distribution of the strain in fastening the pulley to the shaft. The halves of the band 3 are countcrsunk on the outer side opposite the boss, as shown at 3e, so that the bolt-heads shall lie below the surface of the pulley.

The meeting ends of the metallic halves can be tongued and recessed to insure a better joint.

What I claim, and desire to secure by Letters Patent, is-

l. A pulley comprising a body portion composed of severable semicylindric sections of wood or similar material, a ring on the outer sides of said sections composed of severable semicircular sections of metal, and screwbolts passed entirely through the wooden sections and across their meeting faces and engaging the opposite metallic sections of the ring, substantially as described.

2. A pulley-bodycomposed of sections, mex tallic pieces provided with tapped and perforated bosses set into the rim of said body, and screw-bolts passing through said metal' lic pieces and the pulley-body and engaging the bosses, substantially as described.

3. A pulley-bod y composed of sections, metallic pieces provided With bosses, there being screw-holes and perforations in said bosses and bolts passingthrough the perforations of one metallic piece and the pulley-body and engaging the screw-holes of the opposite metallic piece, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

PATRICK J. CREEDEN.

Witnesses:

- EDGAR S. CAMPBELL, GEORGE M. FiNeKEL. 

